Free · No account required
10-question water operator diagnostic
Test your general operator fundamentals in water math, treatment, distribution, wastewater, and safe operations. Get your score, explanations, and topic breakdown immediately.
This is a general skills check, not a substitute for your state-specific certification exam blueprint.
Water Math
1 of 10A plant treats 2.0 MGD and applies chlorine at 3.0 mg/L. Approximately how many pounds of chlorine are required per day?
Distribution
2 of 10What is the primary purpose of maintaining positive pressure in a drinking-water distribution system?
Treatment
3 of 10In conventional surface-water treatment, coagulation is primarily used to:
Wastewater
4 of 10Which measurement is commonly used as an indicator of the biodegradable organic load in wastewater?
Safety & Operations
5 of 10Before entering a permit-required confined space, an operator should first ensure that:
Water Math
6 of 10A rectangular basin is 40 ft long, 20 ft wide, and has an average water depth of 10 ft. Approximately how many gallons does it contain?
Treatment
7 of 10A rising filter effluent turbidity during a filter run most directly suggests that the operator should:
Distribution
8 of 10Why are dead-end water mains often a water-quality concern?
Wastewater
9 of 10In an activated-sludge process, the return activated sludge (RAS) stream is used primarily to:
Safety & Operations
10 of 10When collecting a compliance sample, the best general practice is to:
0 of 10 answered
Answer all 10 to see your results.